GRO Series

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GRO Series

Pentair's GRO membrane element integrates a 100% dry membrane to help maximize its lifespan and provide enhanced performance to the end user. The unique design of the GRO membrane element offers  industry leading recovery rate and allows a quick and retrofit-able design for easy integration.

Features and Benefits

  • Double the recovery over standard reverse osmosis elements
  • Rejection performance comparable to standard reverse osmosis elements
  • High rejection stability at high input TDS
  • TLC Thin Layer Composite membrane
  • 100% dry membrane maximizing shelf life
  • Available with and without permeate check valve


  • Maximum Pressure: 125 PSI (6.90 bar)
  • Maximum Temperature: 120°F (49°C)
  • pH: 4-11
  • Free Chlorine: 0.1 ppm
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